HomeMy WebLinkAboutX2021-1284 - Misc (3)Irrigation Inspection Affidavit
Project Name: 1027 Goldenrod, Newport Beach, CA
Irrigation Plan Designer: MDM SCAPES INC. 714.478.2304 CL#990933
Field Inspector : Michael McMillen BPL Irrigation Auditor 714.394.6126
This project was inspected within the limits of customary access for compliance with the approved
irrigation plans on file in City Planning. At least two (2) inspections were conducted. The findings are as
follows.
Date Inspection: 1210412023
A. Inspections during construction to check mainline in open trench: Yes No
1. Location of mainline conforms to as -built plan X
2. Size of main line conforms to plan X
3. Depth of mainline conforms to plan X
4. Main line conditions is undamaged X
5. Main line pressure tested with water and meter to check for visible leaks X
6. Specific observations attached if needed X _
Date Inspection:1211512023
B. Inspections after completion of system installation prior to sodding:
Yes No
1. Irrigation POC has isolation valve
X
2. System components (i.e., controller, backflow, rain sensor, etc.)
X
3. Drip line GPH and spacing as specified
X
4. System activated for observation of compliance
X
5. Each station complies installed per plan
X
6. Matched precipitation rates provided by zone
X
7. As -built plan provided to owner
X _
S. Specific observations attached as needed
X
Summary of irrigation review:
THE IRRIGATION SYSTEM IS IN COMPLIANCE. IRRIGATION SYSTEM TO BE INSPECTED
WEEKLY BY THE
MAINTENANCE CONTRACTOR DURING THE 90 DAY MAINTENACE PERIOD. THE OWNER/DEVELOPER
WILL DETERMINE WHEN THE MAINTENACE PERIOD WILL BEGIN.
I hereby certify that I am qualified to submit this irrigation inspection affidavit based on the qualification
indicated below: Certified Landscape Irrigation Auditor Certified by The Irrigation Association.
Respectfully,
Michael McMillen ". CLIA
Certified Irrigation Auditor #014256
Big Picture Landscapes k'#4 ASO.11
Water Efficient Landscape Worksheet
Fill in all items in this color
1027 Goldenrod Newport Beach
Answer is shown in this color
Reference Evapotranspiration[ETo)
45.4 NEWPORT BCH Residential
0.55
EfWU
ETWU ETWU ETWU MAWA
ETWU
requirement
requirement requirement requirement requirement
requirement
Hydroeone#/Planting
Plant Factor
Irrigation
Landscape Area
Estimated Total
Description
(PF)
Irrigation Method
Efficiency(IF)
ETAF(PF/IE)
(LA)(sq ft)
ETAF x Area
Water Use (ETWU)
Regular Landscape Areas
1)Low water use Shrubs
0.2
Drip
0.811
0.247
2,124
524.44
14,762
2)Med water use Trees
0.5
Drip
0.811
0.617
0
0.G0
0
3)High water use Turf
0.8
Overhead
0.751
1.067
980
1,045.33
29,424
4)Pool / Spa / Water Feature
To
Pool Fill
1.01
J.DDO
264
264.00
7,431
Totals
3,368
1,833.78
51,617
Special Landscape Areas (SLA): Recycled Water
1
0
0
0
1
0
0
0
1
01
0
0
Totals
01
0
0
Estimated Total Water
Use (ETWU)
51,617
Maximum Allowed Water Allowance (MAWA)
52,141
Irrigation
Plant Water Use Type Plant Factor
Irrigation method Efficiency
Percanraee of MAWA
very low 0-0.1
overhead spray 0.75
99%
low 0.1-0.3
drip 0.81
medium 0.4-0.6
AC al
high 0.7-1.0
0.16
MAWA (annual gallons al lowed)= (Eto) (0.62) [[ETAF x LA) + ((I-EFAF) x SLA))
AC of Ill
0.16
where 0.62 is a conversion factor that converts acre -inches per acre/year to gallons per sq. ft./year.
LA Is the total lancisape area in sq. ft, SLA is the total special landscape area in sq. ft., and ETAF is .55
for residential areas and 0.45 for non residential areas.
ETAF Calculations
Regular Landscape Areas
Total ETAF x Area 1,834
Average ETAF far Regular Landscape Areas must be 0.55 or below for
Total Area 3,368
residential areas, and 0.45 or below for non-residential areas.
Average ETAF 0.54
All Landscape Areas
Total ETAF xArea 1, 334
Total Area 3,368
Sitewide ETAF 0.54
LANDSCAPE IRRIGATION AUDIT REPORT
TENANT IMPROVEMENT: 1027 Goldenrod Newport Beach, CA
MDM SCAPES INC. 714.478.2304 CL#990933
www.mdmscapes.com
Plans by: Cooper Reynolds Gross
CERTIFIED LANDSCAPE IRRIGATION AUDITOR (CLIA)
BIG PICTURE LANDSCAPE
Michael McMillen / 714.394.6126 / Bigpicturelandscape(a_)gmail.com Certified Irrigation Auditor #014256
All of the hydrozones on the irrigation systems were evaluated with a visual inspection. As per your request,
we evaluated the irrigation systems in accordance with the California Model Water Efficient Landscape
Ordinance (MWELO).
SUMMARY
This audit was conducted to inspect the overall site irrigation systems within the limits of construction. The
irrigation systems are new systems utilizing POTABLE water.
IRRIGATION PLANS:
Each hydrozone identified on the plans were executed in the field, (Total valve city. 11). Each system layout,
components and functionality have met all the requirements of the Irrigation Plans.
MWELO:
The California Model Water Efficient Landscape Ordinance has been adopted by the City as the standard for
new construction and irrigation installations based on AB1881.
UNIFORMITY:
The overhead spray lawn areas were operational with the controller. Since the dripline is subterranean and
the planting material is already installed and would be damaged if the dripline were unearthed, a drip catch
can test was not performed. In lieu of the catch can test, the standard 90% efficiency for pressure
compensating drip & low -flow irrigation per the Irrigation Association's Landscape Irrigation Auditor, 3rd
edition book was used for the report.
Shrub ZONES / STATION Al -All
• Irrigated Area: Zones separated based on Full sun South/ West side of project.
• Plant Material: Lawn / Shrubs - Low water
• Plant Condition: Traditional
• Microclimate: Full Sun
• Soil Category: Silty Clay Loam
• Root Depth: Approximately 2-8"
• Slope: Overall site 1%
• Compaction: yes
• Runoff: No runoff observed
• Standing Water: None observed
• Hydrozone Separation: Yes
• Mulch in Beds: Yes
• Pressure Regulation: Not required / Isolation valve installed per plan
• Controller: Rain Bird ESP-TM2 w/ rain shutoff
• Valves: installed (2) on NW side of house, (4) SW (1) on E side
• Emitter Type: Netafim'Tech Line CV' TLCV6-12 (.6 gph @ 12" o.c. row spacing @ 12"-16" o.c.)
• Max Flow: 8.2 GPM
• Distribution Uniformity:.90
• Precipitation Rate:0.6
Punch list Items: 12/04/2023 (Compliance based on the following corrects during the maintenance period)
• Contractor to provide owner with controller charts and Record Drawings.
• Additional bark mulch required in all planters.
Zone Audit Conclusion: PASS, project IS within compliance to begin maintenance.
The irrigation systems were evaluated and based on the Irrigation Association Audit rules/guidelines and
MWELO requirements. 1
Respectfully, C�e
Michael McMillenCertified Irrigation Auditor #014256 Big Picture Landscapes